Aircraft



FIG. 1 is a top perspective view of an aircraft showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevation view thereof the opposite side being a mirror image of that shown;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof.

The broken lines shown in FIGS. 1 thru 6 of the drawing are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an aircraft, as shown and described. 